碎石土路基强夯加固后土体性能计算模型研究及应用  

Study and Application of Calculation Model of Soil Properties of Gravel Soil Subgrade after Consolidation

作　　者：杨胜波[1] 彭小勇[1] YANG Shengbo,PENG Xiaoyong

机构地区：[1]贵州省交通规划勘察设计研究院股份有限公司,贵阳550001

出　　处：《公路交通技术》2018年第4期1-5,共5页Technology of Highway and Transport

基　　金：贵州省交通运输厅科技项目(2014-141026)

摘　　要：为了研究碎石土路基强夯后的土体性能变化情况,分析了强夯法动力压实挤密路基土体的力学机理,结合碎石土路基物理力学性质和强夯碎石土土体的动力特性,采用理论推导的方法,建立了强夯后土体的沉降计算式,并由此推导出强夯后土体的孔隙比、变形模量、内摩擦角和承载力计算模型,解决了强夯后碎石土路基土体性能评价理论计算的问题,将计算模型用于工程实践,取得了一定的指导效果。To research the changes in soil properties of gravel soil subgrade after consolidation,the mechanical mechanism of dynamic compacted subgrade soil was analyzed. The physical properties of gravel soil subgrade were combined with that of gravel soil to determine the settlement equation of soil after compaction and to obtain the void ratio,deformation modulus,internal friction angle and bearing capacity of the soil. This paper establishes the theoretical calculation method of gravel soil after dynamic compaction and employs the model into actual engineering works, which provided useful information for the practitioners.

关 键 词：碎石土路基 强夯法 土体性质 计算模型 

分 类 号：U416.1[交通运输工程—道路与铁道工程]